CN111644817B - Processing method of cap-connected part with inner wall arc spiral groove - Google Patents
Processing method of cap-connected part with inner wall arc spiral groove Download PDFInfo
- Publication number
- CN111644817B CN111644817B CN202010541183.3A CN202010541183A CN111644817B CN 111644817 B CN111644817 B CN 111644817B CN 202010541183 A CN202010541183 A CN 202010541183A CN 111644817 B CN111644817 B CN 111644817B
- Authority
- CN
- China
- Prior art keywords
- processing
- groove
- rough
- cylindrical section
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention provides a processing method of a part with an inner wall arc spiral groove and a cap, which solves the problems that the original part has long processing flow, and the precision of the part is difficult to ensure and the processing efficiency is low due to multiple clamping. A shortening processing technology is provided for parts with inner arc rotary groove structures on the hole walls. The invention combines three procedures of outer circle inner cavity processing, inner wall arc rotary groove processing and hole processing for centralized processing on a numerical control lathe, reduces clamping times, ensures the requirements of size and coaxiality, is especially important for ensuring the processing quality of the inner arc rotary groove of the part, shortening the production period of the part, improving the quality stability of the product, and has important application value for the structure processing of other similar parts.
Description
Technical Field
The invention belongs to the technical field of numerical control machining, and relates to a machining process method for a cap-connected part with an inner wall arc spiral groove.
Background
A large number of cap connecting parts in the connector have a processing technology of arc rotary grooves in inner walls of cavities, the original processing of the arc rotary grooves in the inner walls can adopt special equipment for milling the arc rotary grooves or a mode of variable-pitch threads on a numerical control lathe, and the cap connecting parts with the arc rotary grooves generally need to be repeatedly clamped and positioned on different equipment for processing.
The original processing process flow specifically comprises the following steps:
the first procedure is as follows: numerical control lathing-machining of the outer circle, the inner hole and the inner groove (see fig. 3);
two procedures are as follows: numerically controlled lathe-machining the remaining unprocessed inner holes in the first process (see fig. 4);
three procedures are as follows: bench worker-machining three radial holes (see fig. 5);
four procedures: inserting tool-processing inner wall arc rotary groove (see figure 6);
five procedures: and (4) performing bench work, namely removing burrs of the part.
The original machining process needs to be repeatedly positioned for 4 times, so that the turnover machining time of the part is long, and due to repeated clamping, the sinking amount and the coaxiality of the arc rotary groove of the part are difficult to guarantee, and the out-of-tolerance often occurs.
People hope to obtain a processing method of the inner wall arc spiral groove cap-connected part with excellent technical effect and capability of shortening the process.
Disclosure of Invention
In order to solve the technical problems, the invention provides a processing method of a part with an inner wall arc rotary groove and a cap, which combines three procedures of outer circle inner cavity processing, inner wall arc rotary groove processing and hole processing for centralized processing on a numerical control lathe, reduces the clamping times, ensures the part precision requirement and improves the part processing efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: a processing method of a cap-connected part with an inner wall arc spiral groove specifically comprises the following steps:
step 101, preparing a bar material or a pipe material for processing, equipment for processing and a cutter;
step 102, a first procedure: processing the shapes and inner cavities of parts, processing the flat end face of a small-diameter cylindrical section, and simultaneously forming three holes in the radial direction of the circumference and an arc rotary groove in the inner wall to ensure the requirements of size and coaxiality by adopting corresponding cutters on a common numerical control lathe;
step 103, two procedures: on a numerical control lathe with the C-axis function, rough and fine outer circular cutters are adopted to perform rough and fine turning on the flat end surface of the large-diameter cylindrical section on the other side of the part processed in the first procedure, and rough and fine boring cutters are adopted to perform rough and fine boring on the fourth inner hole and the fifth inner hole, so that the requirements on size and coaxiality are met;
step 104, three procedures: and removing burrs of all parts by a bench worker.
Further, the specific operation steps of the first step of step 102 include:
(1) drilling a hole in the bar by using a drill bit with the axial minimum hole diameter of the part reduced by 1mm, and if the pipe is used for machining, drilling is not needed;
(2) performing rough and finish turning excircle machining on the flat end surface of the small-diameter cylindrical section, the small-diameter cylindrical section and the large-diameter cylindrical section by adopting rough and finish turning excircle cutters; knurling the outer circular surface of the large-diameter cylindrical section by using a knurling wheel;
(3) carrying out coarse and fine boring processing on the first inner hole, the second inner hole and the third inner hole by adopting a coarse and fine boring cutter;
(4) performing rough machining and finish machining on the first inner groove and the second inner groove by using an inner groove cutter;
(5) drilling three radial holes by adopting a drill bit with a specific three radial holes required size;
(6) turning the arc rotary groove on the inner wall by adopting an arc groove cutter with the requirement on the width of the arc groove;
(7) and a cutting-off tool is adopted to cut off the part, so that the requirements on axial and radial dimensions are met.
Further, the forming of the inner wall arc spiral groove in the step 102 is to adopt a subprogram to program a forming program according to a corresponding angle and an axial length which are given by design in a common numerical control machine, and a numerical control system calls the subprogram to complete the processing of the inner wall arc spiral groove during processing.
Further, the sub-procedure of the inner wall arc spiral groove forming is as follows:
program No. 0001
G0 Z5；
G1 (feed code) G98 (feed per minute setting code) H5 (initial rotation angle, settable) Za0 (axial starting point) F3000 (feed value, numerical value adjustable);
ha1(a1 is the first rotation angle value, given according to the design curve) Zb1(b1 is the first axial value, given according to the design curve);
ha2(a2 is the second rotation angle value, given according to the design curve) Zb2(b2 is the second axial value, given according to the design curve);
…………
han (an is the nth rotation angle and is correspondingly given according to the design curve) Zbn (bn is the nth axial value and is correspondingly given according to the design curve);
H12U-5 (radial retracting);
G0Z5 (axial retracting);
u5 (radial back to knife start point);
m99 (subroutine end);
％。
further, the numerical control lathe tool rest with the C-axis function in the step 103 is provided with a drilling and milling power head.
Compared with the prior art, the invention has the following beneficial effects: the invention integrates the turning procedure of the outer diameter and the inner hole of the part, the drilling procedure of three holes on the circumferential wall of the part and the turning procedure of three inner wall arc rotary grooves on the inner hole wall of the part in the original three procedures into one procedure, reduces the repeated positioning times, improves the size precision of the part, reduces the turnover waiting time of the procedures and improves the processing efficiency of the part.
The invention solves the problem that the dimensional precision is difficult to ensure caused by the original multi-process machining, and is particularly important for ensuring the machining quality of the arc rotary groove on the inner wall of the part, meeting the requirement of the connection torsion of subsequent products and improving the quality stability of the products.
Drawings
FIG. 1 is a schematic view of the first process of the present invention;
FIG. 2 is a schematic processing diagram of a two-pass process of the present invention;
FIG. 3 is a schematic view of the first process (numerically controlled lathe) in the original processing flow;
FIG. 4 is a schematic view of two steps (numerical control lathe) in the original process flow;
FIG. 5 is a schematic diagram of three steps (bench drilling) in the original process flow;
FIG. 6 is a schematic view of four steps (insert tool processing inner wall arc rotary groove) in the original processing flow;
FIG. 7 is a schematic view of the pre-machined inner wall arc spin groove corresponding angle and axial length parameters of the present invention;
FIG. 8 is an expanded view of a pre-machined inner wall arc-spiral groove of the present invention;
in the figure: 1-a small diameter cylindrical section; 2-a large diameter cylindrical section; 3-a first inner bore; 4-a second inner bore; 5-a third inner hole; 6-a first inner tank; 7-a second inner tank; 8-inner wall arc rotary groove; 9-a fourth bore; 10-fifth bore.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
The materials are prepared before processing, and the process equipment is as follows:
firstly, processing a used bar stock;
a common numerical control lathe; (lathe model CAK6140)
Thirdly, a numerical control lathe with a C shaft function and a power head; (lathe model SK320)
Fourthly, the cutter: the device comprises a drill bit, an outer circle finish turning cutter, an outer circle rough turning cutter, a boring cutter for finish machining, an arc groove cutter, an inner groove cutter, a knurling wheel and a cutting-off cutter.
A processing method of a cap-connected part with an inner wall arc spiral groove specifically comprises the following steps:
step 101, preparing a bar material or a pipe material for processing, equipment for processing and a cutter;
referring to fig. 1, step 102, the first process: processing the shapes and inner cavities of parts, processing the flat end face of the small-diameter cylindrical section 1, and simultaneously forming three holes in the radial direction of the circumference and an arc rotary groove in the inner wall to ensure the requirements of size and coaxiality by adopting corresponding cutters on a common numerical control lathe;
referring to fig. 2, step 103, two steps: on a numerical control lathe with the C-axis function, rough and fine outer circular cutters are adopted to perform rough and fine turning on the flat end surface of the large-diameter cylindrical section 2 on the other side of the part processed in the first procedure, and rough and fine boring cutters are adopted to perform rough and fine boring processing on the fourth inner hole 9 and the fifth inner hole 10, so that the requirements on size and coaxiality are met;
step 104, three procedures: and removing burrs of all parts by a bench worker.
Referring to fig. 1, the specific operation steps of the first step of step 102 include:
(1) drilling the inner hole of the bar by using a drill bit with the diameter of the axial minimum inner hole of the part (the minimum inner hole is a third inner hole 5 in the embodiment) reduced by 1mm, and if the pipe is used for machining, drilling is not needed;
(2) performing rough and finish turning outer circle machining on the flat end surface of the small-diameter cylindrical section 1, the small-diameter cylindrical section 1 and the large-diameter cylindrical section 2 by adopting rough and finish turning outer circle cutters; knurling the outer circular surface of the large-diameter cylindrical section 2 by using a knurling wheel;
(3) carrying out rough and fine boring processing on the first inner hole 3, the second inner hole 4 and the third inner hole 5 by adopting a rough and fine boring cutter;
(4) performing rough machining and finish machining on the first inner groove 6 and the second inner groove 7 by using an inner groove cutter;
(5) drilling three radial holes by adopting a drill bit with a specific three radial holes required size;
(6) turning an arc rotary groove 8 on the inner wall by adopting an arc groove cutter with the width requirement of an arc groove;
(7) and a cutting-off tool is adopted to cut off the part, so that the requirements on axial and radial dimensions are met.
The inner wall arc rotary groove 8 of step 102 is formed by corresponding the angle and the axial length of the inner wall arc rotary groove 8 given according to the design in the common numerical control machine (the angle and the axial length parameters of the embodiment refer to fig. 7, α ° in fig. 7 represents the angle, a represents the axial length (the coordinate value of Y axis in the expanded view of fig. 8)).
And programming a forming program by adopting a subprogram, and calling the subprogram by a numerical control system during processing to finish the processing of the inner wall arc rotary groove 8. (the system of the numerical control machine tool adopts KND1000 and Guangdong 980TC 3.)
The inner wall arc rotary groove 8 processing subprogram is compiled by adopting a subprogram mode as follows:
o948120 (program number)
G0 Z5；
G1 G98 H5 Z1.2895 F3000；
H5Z1.0175；
H5Z0.3595；
H5Z-0.2525；
H5Z-0.7625；
H5Z-1.24；
H5Z-1.63；
H5Z-1.8895；
H5Z-2.1325；
H5Z-2.3505；
H5Z-2.5685；
H5Z-2.7825；
H5Z-3.005；
H5Z-3.2175；
H5Z-3.429；
H5Z-3.6525；
H5Z-3.8625；
H5Z-4.0775；
H5Z-4.2965；
H5Z-4.514；
H5Z-4.7285；
H5Z-4.93；
H5Z-5.1565；
H5Z-5.36；
H5Z-5.4075；
H5Z-5.3825；
H1Z-5.32；
H1Z-5.28；
H1Z-5.23；
H1Z-5.15；
H1Z-5.082；
H12 U-5；
G0Z5；
U5；
M99；
％。
And in the step 103, a drilling and milling power head is arranged on the numerical control lathe tool rest with the C-axis function.
The processing time of 3min is needed only by processing the arc rotary groove by adopting the original processing technology, and the processing time for processing the integral connecting cap can be shortened to about 1min by adopting the processing technology of the invention, thereby greatly improving the processing efficiency. The process can solve the problems that the original part has long processing flow and the precision of the part is difficult to ensure and the processing efficiency is low due to multiple clamping, is particularly important for ensuring the processing quality of the arc rotary groove on the inner wall of the part, shortening the production period of the part and improving the quality stability of the product, and has important application value for processing other similar part structures.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (1)
1. A processing method of a cap-connected part with an inner wall arc spiral groove specifically comprises the following steps:
step 101, preparing a bar material or a pipe material for processing, equipment for processing and a cutter;
step 102, a first procedure: processing the shapes and inner cavities of parts, processing the flat end face of a small-diameter cylindrical section, and simultaneously forming three holes in the radial direction of the circumference and an arc rotary groove in the inner wall to ensure the requirements of size and coaxiality by adopting corresponding cutters on a common numerical control lathe;
step 103, two procedures: on a numerical control lathe with the C-axis function, rough and fine outer circular cutters are adopted to perform rough and fine turning on the flat end surface of the large-diameter cylindrical section on the other side of the part processed in the first procedure, and rough and fine boring cutters are adopted to perform rough and fine boring on the fourth inner hole and the fifth inner hole, so that the requirements on size and coaxiality are met;
step 104, three procedures: removing burrs of all parts by a bench worker;
the specific operation steps of the first procedure in the step 102 comprise:
(1) drilling a hole in the bar by using a drill bit with the axial minimum hole diameter of the part reduced by 1mm, and if the pipe is used for machining, drilling is not needed;
(2) performing rough and finish turning excircle machining on the flat end surface of the small-diameter cylindrical section, the small-diameter cylindrical section and the large-diameter cylindrical section by adopting rough and finish turning excircle cutters; knurling the outer circular surface of the large-diameter cylindrical section by using a knurling wheel;
(3) carrying out coarse and fine boring processing on the first inner hole, the second inner hole and the third inner hole by adopting a coarse and fine boring cutter;
(4) performing rough machining and finish machining on the first inner groove and the second inner groove by using an inner groove cutter;
(5) drilling three radial holes by adopting a drill bit with a specific three radial holes required size;
(6) turning the arc rotary groove on the inner wall by adopting an arc groove cutter with the requirement on the width of the arc groove;
(7) cutting off the part by a cutting-off tool to ensure the requirements on axial and radial dimensions;
the forming of the inner wall arc spiral groove in the step 102 is to adopt a subprogram to compile a forming program according to a corresponding angle and an axial length which are given by design in a common numerical control machine tool, and a numerical control system calls the subprogram to complete the processing of the inner wall arc spiral groove during processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541183.3A CN111644817B (en) | 2020-06-15 | 2020-06-15 | Processing method of cap-connected part with inner wall arc spiral groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541183.3A CN111644817B (en) | 2020-06-15 | 2020-06-15 | Processing method of cap-connected part with inner wall arc spiral groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111644817A CN111644817A (en) | 2020-09-11 |
| CN111644817B true CN111644817B (en) | 2022-03-11 |
Family
ID=72341837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010541183.3A Active CN111644817B (en) | 2020-06-15 | 2020-06-15 | Processing method of cap-connected part with inner wall arc spiral groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111644817B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5292298A (en) * | 1993-01-06 | 1994-03-08 | Roll Service Incorporated | Heat transfer roll |
| CN101347889A (en) * | 2008-06-26 | 2009-01-21 | 上海采埃孚转向机有限公司 | Method for processing sleeve of vehicle steering valve |
| CN104154796A (en) * | 2014-07-29 | 2014-11-19 | 袁新华 | Internal-thread heat exchange pipe and manufacturing process thereof |
| CN105562852A (en) * | 2016-01-13 | 2016-05-11 | 成都优拓优联科技有限公司 | Processing process for inner barrel for petroleum drilling |
| CN105834685A (en) * | 2016-04-26 | 2016-08-10 | 苏州昭沃五金科技有限公司 | Machining process for three-curved-groove connector sleeve |
| CN110757105A (en) * | 2019-11-13 | 2020-02-07 | 中国航发动力股份有限公司 | Machining method of thin-wall sleeve type part |
| CN110948180A (en) * | 2020-01-03 | 2020-04-03 | 中国船舶重工集团公司第七0七研究所 | Turning and milling combined machining process method for gyroscope wire protection plate |
-
2020
- 2020-06-15 CN CN202010541183.3A patent/CN111644817B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5292298A (en) * | 1993-01-06 | 1994-03-08 | Roll Service Incorporated | Heat transfer roll |
| CN101347889A (en) * | 2008-06-26 | 2009-01-21 | 上海采埃孚转向机有限公司 | Method for processing sleeve of vehicle steering valve |
| CN104154796A (en) * | 2014-07-29 | 2014-11-19 | 袁新华 | Internal-thread heat exchange pipe and manufacturing process thereof |
| CN105562852A (en) * | 2016-01-13 | 2016-05-11 | 成都优拓优联科技有限公司 | Processing process for inner barrel for petroleum drilling |
| CN105834685A (en) * | 2016-04-26 | 2016-08-10 | 苏州昭沃五金科技有限公司 | Machining process for three-curved-groove connector sleeve |
| CN110757105A (en) * | 2019-11-13 | 2020-02-07 | 中国航发动力股份有限公司 | Machining method of thin-wall sleeve type part |
| CN110948180A (en) * | 2020-01-03 | 2020-04-03 | 中国船舶重工集团公司第七0七研究所 | Turning and milling combined machining process method for gyroscope wire protection plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111644817A (en) | 2020-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108127341A (en) | A kind of processing technology of precision support bushing class part | |
| CN112192161A (en) | Machining method for shaft boss shell parts | |
| CN111644817B (en) | Processing method of cap-connected part with inner wall arc spiral groove | |
| CN104475887B (en) | The EDM Grinding method of Low rigidity taper seat rod member | |
| CN112122881A (en) | Chamfering machining method for side hole of cylinder | |
| CN114260738B (en) | High-precision thin-wall type half coupling turning tool and method | |
| CN106112083A (en) | A kind of deep hole end face annular groove forming-tool | |
| CN113061864B (en) | Clamping ring and machining method and application of internal screw hole of clamping ring | |
| CN216967095U (en) | Major diameter is than great case hole finish machining location frock | |
| CN112621128A (en) | Method and tool for machining stepped high-precision small-diameter deep-hole shell | |
| CN108942088B (en) | Boring and milling method for high-precision semicircular hole group | |
| CN112404463A (en) | Processing method of zoom adjusting nut | |
| CN114029512B (en) | Method for machining micro-flow valve core | |
| CN112676765A (en) | Inner spherical surface machining process | |
| CN218983943U (en) | Multi-station fixture for valve body five-axis milling groove and inclined hole drilling | |
| CN213002682U (en) | Circular groove cutter | |
| CN109015029A (en) | A kind of cast precision component positioning jacket with cross open and preparation method thereof and application method | |
| CN216541051U (en) | Combined multipurpose end mill | |
| CN110216431A (en) | A kind of processing method of 1000MW Steam Turbine jiggering gear hole | |
| CN219581869U (en) | Combined electrode for electric spark machining of internal and external splines | |
| CN214349681U (en) | Combined boring cutter device | |
| CN210789270U (en) | High-precision chamfering tool | |
| CN212121691U (en) | Cutter for accurately machining conical inner hole | |
| CN115194418B (en) | Processing technology of integrated special-shaped thin-wall shell | |
| CN216227355U (en) | Milling tooth processing tool with positioning flat wire worm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |